Yarn spool for tube frames



Sept. 2s, 1923.

E. F. HATHAWAY YARN SPOOL FOR TUBE FRAME Filed 'June' 1. 1922 A l l 1 1 1 n x l Y i256 I (MEQ,

Patented Sept. 25, 1923.

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y EDGAR r. HATHAWAY, or wnnnnsnn'r;MassaenUsETTs; assrenonTo sriAWMU'T ENGINEERING COMPANY, or BosToN, MrissAenUsnTTs, n. CORPORATION or IIASSACHUSETTS.

Application filed June 1,

To all 'whom t may concern Be it known that I, EDGARF. IIATHAWAY, a citizen of the United States, and resident ot YWellesley, in the county of Norfolkand State of Massachusetts, have invented certain new and useful Improvements in Yarn Spoolsjfor Tube'F rames, of which the 'following is a specification,

This invention relates to, spools such as are used in tube frames to supply the filling tufts or yarn in thev process of weaving pile fabrics such, for example, asV Axminster carpets. Except on the narron7 looms the yarn spool is usually made in two or three longitudinalr sections mounted in bearings on the tube Aframe with their adjacent jour nals or bearing gudgeons lying inl the same bearing'member which isY interposed between adjacent heads of the lspool section-sand so interlocked with each other by a tongue and groove joint or otherl interlocking` connections as to secure uniform and equal rotation of the spool sections to obtain equal delivery of all the yarn ends as if they were wound on a single integral spool.Y Y

Now as yarn ends of each spool section are trimmed before the spool is inserted in the frame in order to make them even for equal delivery to the fabric in the process of weaving, it willbe understood that theV line ofthe ends of' one spool sectionmay not be registered or aligned Vwith the yarn -ends of the other spool sections when the sections are interlocked by their tongue and groove joints. ThisV condition would necessitate' further trimming after the spools i are inserted in the tube frame which is ysection thereb securingl an even and et ual deliveryl ofall endson the several spool sections and obtaining an equal tension or pull on all of the ends. f c

This and other features of the invention will be explained in theftollowing' specification and will be defined in the claims hereto annexed. Y Y

YARN SPOOL FR TUBE FEM/IES.

1922. Serial No. 565,142.

In the" accompanying .drawing-s' I have illustrated ditterent forms of construction and arrangement exemplifying the principles of this invention7 in which Y Figure l isa plan viewV showing a longinection With its spool, the adjacent end oi the next spool section being shown in dotted plan views showing the journal memberv clutched and vu'nclutched from its yarn roller section, under a modified arrangement.`

Figure 7 is an end view from the inside end .of the journal connection shown in Figures 5 and 6.

In the practice'o this invention any suitable form ot' roller section or spool may be employed. In the drawings I have shown adjacent sections a and Z) ofthe yarn spool in interlockedposition iii the bearing, the cylindrical portions of the two spools being indicated by dotted lines at a and 'b with bearing gudgeon or journals interlocked by tongue and groove engagement and seated in one of the intermediate bearings shown .in dotted lines at c. f

Inside the end ofthe spool bodyfa is inserted a bushing or thimble'l which may be providedV with anv annular groove as at 2, into which the 'metal tube comprising the cylinder of the tube may be spun as indicated in Figures. The extreme outer end ofthe bushing is i'abbeted or turned down to allow the head or end disk 3 of the yarn spool to be pressed ovcrit after which the edge por-l tion or the vbushing is spun'up as indicated at i to secure thev disk or headV zl firmly to the bushingl lto supportthe adjacent yarn when wound on the spool. Y

The object or"v the invention is to provid an interlocking journal or gudgeon which justed in relation tothe spool'so that, When the yarn ends of the adjacent spool sections are in register with each other, the journal may be rotated or turned Without disturbing -tudinal section of one end journal con Ymay be rotatably Vor circum'ferentially a'd- Y the alignment of the yarn ends until the two adjacent ournals are interlocled. i

In this case the journal member .is in the form of a cylindrical plug 5, provided with al reduced guflgeon or journal 6, provided with either a tongue or a groove to interlock with the corresponding member of the ext adjacent ournal, said tongue being shown at 7 in `Figure l. The journal member, while fitting snugly in the bushing, has enough freedom to permit it toslideaxially of the spool. It is normally thrust outward by a yielding spring 8, abutting against its rear end, the inner end of said spring abutting against the end wall 9 of the bushing. The

springsurrounds a pin 10v which pin is fas- Y lthe yarn ends are in alignment or register tenedor fixed in the plug or journal member 5, and has at its outer end an enlarged head serving as a stop to limit the outward movement of said plug which results from the pressure of the spring.

It will be noted that the inner wall of the bushing l, is cut away or counterbored as v shown l2, to enlarge the internal diameter of the inner end of the bushing. The plug 5 is also provided with a series of peripheral recesses 13, whose bottom faces are on the line ofjchords of the circumference, said re- 'cessesbeing of suicient depth at their middie portions to allow bearing balls le to'rest thereon without contact with the sub-tending inner wall of the bushing, but at their opposite ends said recesses are sufiiciently shallow so that when the ball rolls tOWlld either endiaway from the Vmiddle-position it is wedged between the bottom of the recess and thesurroun'ding inner wall of the bushing, thus forming a ball clutch engagement. 1n the drawings I have shown/three such recesses with their clutching balls iii-order that in any possible rotative position of the plug at least one ball will be in clutching eng-agement between the plug and the busliing. Y

lt will be observed, however, that when the plug is pushed inwardly so that the balls lie inside the enlarged or counteibored will be in clutching engagement because the farther removed from even the end portions of the ball recesse toV the diam-eter yof the ball.Y ln such in ward position, therefore. the plug may be rotated independently of thespool section,

orthe spool section maybe rotated inde pendently of the plug vso 'as to secure ror 'wall of the. bushing at this pointn is than a 'distaA vce equal.

the cooperating interlocking member so as to avoid allowing the tongue and groove to match and vform interlocking engagement at this stageof the operation. As shown at 7, the ends of the tongue 7 are'preferably bevelled to facilitate forcing the journal plug inwardly when the spool is laid in the bearing. the position' indicated in Figure. 4 with the journal members in non-aligned or noninterlocking position. The attendant' then rotates the -spool section so inserted until with the yarn endson the adjacent spool section. After such alignment has'been secured the journal is then rotated in the bushing by means of any suitable form of Spanner which may be insertedin the notch or groove 7b until it is aligned with' its cooperating tongue when the tension on the spring will force Vthe tongue of the journal into the groove in interlocked position. lt will, therefore, be seen that with a construe. tion operating on this principlerit is no longer necessary to trim Volf the trimmed ends of different spool sections to make them register with the yarn ends of the yarn spool sections since the circumferentially adjustable journal makes provision Vfor bringing the yarn ends of the different spool sections into register, and of securely interlocking them together by Vmeans of their journal members without disturbing Such alignment.

The parts then lie in- 1t is, of course, immaterial whether the y male or female journal member is made adjustable, and it is obvious that it is only` necessary to make vonerof the two adjacent tion. In Figures 5, 6 and 7 1 have shown modified form of adjustable gripping con- 1 Y Vnection for effecting the same purpose. diameter 12 of the bushing,.none of the balls rilhe form lof the invention shown in F igures 5 to 7 possesses the advantageof mak-y ing it possible to mpartlthe' necessary rotative movement Hof the connecting journal member to secure alignment between the yarn ends of two adjacent spool sections by' turningthe disk vorl head which, in form above described, was Vsecuredffto Vthe bushing which is fixed inside the end of the tube or roller a.

' In this` form of the invention I provide'a-n77N a flange 23, to prevent endwise movement outwardly, and having its outer end rabbeted so as to permit the spinning "up of the thin lip at 25 over,l the edge of the central aperture in the disk 24, to permanently ysecure the disk or head 2li of the spool'to the rotatable sleeve 22.

n the rear end of the bushing or Ufer-V 20, are mounted two semi-cylindrical A ch blocks 26 having an internal 'tapered bore to receive the ltapered extension 34, of

the journal member 50. The journal member for adjustment in order ,to bring the interlocking member or tongue 3l into alignment with the matching groove in its companion journal at the end of the adjacent spool section b. Y

A compressed spring 35 normally acts to thrust the journal member outward into interlocking engagement, andv this outward movement, by reason of thetapcred engagement of the extension 34 with the clutch blocks 26, acts to expand such clutch b-locks into peripheral gripping engagement against the inner wall of the bushing 20. Conversely the inward movement of the loose journal member releases the frictional gripping connection between the journal member and the spool section or roller to permit the circumferential adjustment of the latter and to permit the rotation of the journal member thereafter when proper alignment has been secured to interlock the two adjacent journal members and produce uniform rotation between the AtwoV spool sections.

l`What I claim'is:` Y

l. A yarn spool for a tube frame or the like, embracing in its construction two or more spool 'sections having detachably interlocking journal members' one of which is connected with its spool section by means of a frictional but releasable engagement to permit rotative adjustment between said spool section and its journal member in Vorder to secure proper alignment of the yarn ends of the spool sections and also proper matching ofthe interlocking journal members, substantially as described.

` 2. A yarn spool for a tube frame or the like embracing in its construction plural spool sections and interlocking members detachably connecting the adjacent ends of the spool sections together to 'secure uniform rotation of the spool sections, one member being mounted to permit circumferential adjustment between itself and its spool section in orderto align the yarn ends ofthe spool `sections and allow said members to be interlocked, substantially as described.

3. A yarn spool for a tube frame' einbrac- Aing in its construction, plural spool sections,

means for detachably connecting adjacent ends of the spool sections together for uniformfrotation, one ofsaidV members being circumferentially Aadjustable inl relation to its spool section when moved inwardly in an 'axial vdirection and being operatively connected with its'spool section when in outwardly extended position, substantially as described. y v 1 4. A yarn spool for a tube 'frame or the like embracing in itsconstruction, plural spool sections and interconnecting members arranged to detachably interlock to insure uniform rotation, one of said members being axially movable into and out of interlocking engagement with the other member andliaving clutched connection with itsl spool sec- Ation when in interlocking position, said movable member being unclutched when moved out of interlocking position, substantially as described.

5. A yarn spool for a tube frame or the likev embracing in its construction, plural spool sections, removably interlocked inembers forming end connections between the` two spools to insure uniform rotation, one of said members being movable into and out of interlocking position and means acting to automatically interlock said member with the cooperating end member of the adjacent spool section and thereby clutch said movable member into driving connection with its spool section, substantially as described.

6. A yarn spool for a tube frame or thev like embracing in its construction, plural spoolV sections having interconnecting end members constructed to secure uniform rota tion of the sections, one of said sections being rotatable independently of its ownv endV member to permit the alignment ofits yarn ends with those of the othersection while the end membersare out of interlocked position, substantially as described. j

7. A yarn spool for a tube frame or the like embracing in'its constructiomplural Y spool'sections having interlocking end members one of which is mounted to permit longitudinal movement in relation to its own spool section and also -rotative movement,V

andk a thrust spring acting to move said movable end member axially into interlocking engagement with the other end member and to frictionally clutch it to its own spool vmember, substantially as described.

8. A spool section for a tubeframe yarn spool embracingin its construction, a spool clutchin roller having yarn retaining heads, im. end journal provided with means for interlock-V ing with. an endjournal. member of an adjacent spool7 said interlocking` member beingV axially movable into and out 'et frictional g connect-ion with its'roller, Substantially as described. Y Y l 9. A spool section for aryarn spool cmbracing in its construction a Spool roller having a hollow end portion7 an yaxiallv movable spring-pressed member adapted to form interlocking engagement with an end member of 'another spool sectOn and having clutching connection with a cooperating clutch member inside said hollow end portion of the roller9 said cooperating' clutching member being` constructed to cause the release of the clutch engagement when lie spring-pressed member is moved out of'its Leeezlsl interlocking pOStion, substantially as ,de-

a spring-pressed journal member formed ,to

have interlocking engagement with jacent spool section tov secure uniformity of rotation of both spoolsections, said journal member being'provided with means to ferm clutching connection withV its spool section when pressed outward by its spring' to interlocking position and .to be released from said clutching connection by its inward movement away `from interlocking' position, substantially as described.Y

In Witness whereof, l have subscribed the above specification.

EDGAR F- HATHAWAY 

